Investigation of electrical resistance and thermal EMF of a single crystal of samarium monosulfide under temperature cycling in the range 320–800 K

The study of the temperature dependences of the electrical resistance $R$ and thermal EMF $S$ of a single crystal of samarium monosulfide SmS in two cycles in the range $320$ – $800$ K. It has been established that cyclic temperature action has a significant effect on the processes of electrical transfer in the test sample, which is found in hysteresis phenomena on the dependences of $\ln[R(10^3/T)]$ and $S(T)$, as well as in changes in the behavior of the latter in the high-temperature region, both due to rearrangement of the impurity and exciton spectra, and the participation of in electronic transport the $5d$-subzone of the SmS conduction band.